Serhiy Storchaka <storchaka+cpyt...@gmail.com> added the comment:
You can validate the input before using it.
if '_' in s: raise ValueError
or
if not re.fullmatch('[0-9]+', s): raise ValueError
Do you want to accept "۱۲۳۴" or " 12 "? If not then validate the
input before using int().
Also, do not use ast.literal_eval() with untrusted input without validation. It
is not a "safe eval" and may even crash the interpreter.
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nosy: +serhiy.storchaka
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Python tracker <rep...@bugs.python.org>
<https://bugs.python.org/issue39956>
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